Benchmark Results

We have tested the edge switches and on-board Broadcom NICs both
for overall performance and for jumbo frame support. There are two
choices of Linux driver for this NIC. NEED BCM RESULTS.

The following netperf tests were performed using netperf-2.4.0, available at netperf's home page. For each test, I ran netserv on each machine (with the command netserver -v 4 -4 -d, where -v 4 turned up verbosity, -4 specifies TCP/IP v4.0, and -d would return extra debug info), and then through a shell script, I ran the following netperf commands on each machine netperf -c -C -f K -l 60 -H $THE-OTHER-MACHINE.

This graph shows total throughput of two machines, target using 2.6.9-FC3 tg3 driver, attached via Xover cable, with some basic tcp "optimizations" (need more details), and w/o the "low-latency" sysctl setting:

This graph shows total throughput of two machines, target using 2.6.9-FC3 tg3 driver, attached via Xover cable, with some basic tcp "optimizations" (need more details), a txqueuelen of 10,000, and w/o the "low-latency" sysctl setting:

This graph shows total throughput of two machines, target using 2.6.9-FC3 tg3 driver, attached via SMC 8505T switch, using all defaults: